===============================第一题==============================
import java.applet.Applet;
import java.awt.Color;
import java.awt.Label;
public class test extends Applet {
private Label label;
@Override
public void init() {
label=new Label("欢迎来到java世界!");
label.setBackground(Color.BLUE);
setBackground(Color.PINK);
add(label);
}
}
===============================第二题==============================
因为没图,所以自己设计的界面..
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class test implements ActionListener {
private JFrame frame;
private JLabel label;
private JTextArea jt;
private JScrollPane jsp;
private JButton show;
public test() {
frame=new JFrame("Test");
label=new JLabel("显示内容");
jt=new JTextArea(10,20);
jsp=new JScrollPane(jt);
show = new JButton("显示给定内容");
JPanel panel=new JPanel();
panel.add(label);
panel.add(show);
frame.add(jsp,BorderLayout.NORTH);
frame.add(panel,BorderLayout.SOUTH);
show.addActionListener(this);
show();
}
public void show(){
frame.setLocation(200, 200);
frame.setSize(300, 260);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
label.setText(jt.getText());
}
public static void main(String[] args) {
new test().show();
}
}
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